DR. HAROUN KHATIR ABDALLA SHASHD; AMAR ABD EL RSOUL BUSHRA ADAM; AMNA ELTAYEB ALI GASSMALLA. Investigating the Role of self-Learning in Acquiring English as Foreign language at Sudanese Tertiary Level. White Nile Journal for Studies and Research, [S. l.], n. 18, p. 210–231, 2021. DOI: 10.67135/wnj.2021.1810. Disponível em: https://journals.wnu.edu.sd/index.php/wnjsr/article/view/115. Acesso em: 19 aug. 2026.